Radiodetection RD8100 PDLM RF Marker & Precision Utility Locator The Radiodetection RD8100 PDLM combines advanced precision cable and pipe locating with RF marker detection for professionals working in complex underground utility environments. By integrating utility tracing, sonde locating, and RF marker detection into one instrument, the RD8100 PDLM helps reduce equipment requirements while supporting confident identification of buried infrastructure. Designed for demanding locate applications, the PDLM provides 18 active locate frequencies, 5 active locate modes, 4 sonde frequencies, 5 passive modes, and 9 RF utility marker frequencies . Combined line and marker locating allows operators to detect RF markers while tracing buried utilities, while Current Direction and Power Filters™ help discriminate the intended utility in congested networks. Key Features Precision utility and RF marker locating – Combines cable, pipe, sonde, and RF marker detection in one professional locator. 9 RF marker frequencies – Detects the major marker types used for identifying buried utility infrastructure. Advanced utility discrimination – Current Direction and Power Filters™ help operators identify and follow the intended utility through congested or complex networks. Simultaneous line and marker detection – Combined locate mode supports efficient tracing of buried utilities while searching for associated RF markers. Ideal For Professional utility locators, municipalities, telecom crews, survey teams, and contractors working in complex underground networks where advanced utility discrimination and RF marker detection are required .